age of consent

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The age at which a person is legally considered competent to give consent, as to sexual intercourse.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun law The age at which a person is legally considered to be mature enough to engage willingly in sexual intercourse.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the minimum age for marrying without parental consent or the minimum age for consensual sexual relations; intercourse at an earlier age can result in a charge of assault or statutory rape; the age differs in different states of the Union